Although conventional radiographic examination continues to play a central role in the initial diagnostic imaging evaluation or cardiorespiratory disorders, newer imaging modalities including ultrasonography , computed tomography (CT) and magnetic resonance imaging (MRI) are becoming increasingly important for more enhanced documentation of disease and for improved therapeutic planning and monitoring. Although these advanced imaging technologies are often not directly accessible to the general practitioner, it is important to have an understanding of the clinical uses for these imaging modalities and to recognize when referral for such studies is indicated. This chapter looks at Fluoroscopy; and Computed tomography and magnetic resonance imaging.